Update README.md

Author: mehcode

README.md

@@ -41,16 +41,63 @@
 
 SQLx is a modern SQL client built from the ground up for Rust, in Rust.
 
- * **Truly Asynchronous**. Built from the ground-up using [async-std] using async streams for maximum concurrency.
+ * **Truly Asynchronous**. Built from the ground-up using async/await for maximum concurrency.
 
  * **Type-safe SQL** (if you want it) without DSLs. Use the `query!()` macro to check your SQL and bind parameters at 
  compile time. (You can still use dynamic SQL queries if you like.)
 
  * **Pure Rust**. The Postgres and MySQL/MariaDB drivers are written in pure Rust using **zero** unsafe code.
+ 
+ * **Runtime Agnostic**. Works on [async-std](https://crates.io/crates/async-std) or [tokio](https://crates.io/crates/tokio) with the `runtime-async-std` or `runtime-tokio` cargo feature flag.
+
+## Install
+
+**async-std**
+
+```toml
+# Cargo.toml
+[dependencies]
+sqlx = "0.2"
+```
+
+**tokio**
+
+```toml
+# Cargo.toml
+[dependencies]
+sqlx = { version = "0.2", no-default-features = true, features = [ "runtime-tokio", "macros" ] } 
+```
+
+#### Cargo Feature Flags
+
+ * `runtime-async-std` (on by default): Use the `async-std` runtime.
+ 
+ * `runtime-tokio`: Use the `tokio` runtime. Mutually exclusive with the `runtime-async-std` feature.
+ 
+ * `postgres`: Add support for the Postgres database server.
+ 
+ * `mysql`: Add support for the MySQL (and MariaDB) database server.
+ 
+ * `uuid`: Add support for UUID (in Postgres).
+ 
+ * `chrono`: Add support for date and time types from `chrono`.
+ 
+ * `tls`: Add support for TLS connections.
 
-[async-std]: https://github.com/async-rs/async-std
 ## Examples
 
+#### Connect
+
+It is a very good idea to always create a connection pool at the beginning of your application
+and then share that.
+
+```rust
+# Postgres
+let pool = sqlx::PgPool::new("postgres://localhost/database").await?;
+```
+
+#### Dynamic
+
 The `sqlx::query` function provides general-purpose prepared statement execution. 
 The result is an implementation of the `Row` trait. Values can be efficiently accessed by index or name.
 
@@ -63,6 +110,8 @@ let row = sqlx::query("SELECT is_active FROM users WHERE id = ?")
 let is_active: bool = row.get("is_active");
 ```
 
+#### Static
+
 The `sqlx::query!` macro prepares the SQL query and interprets the result in order to constrain input types and 
 infer output types. The result of `query!` is an anonymous struct (or named tuple).